Of interest for discussions of network neutrality: Dan Kaminsky
<http://dankaminsky.com/> has a really interesting talk at Chaos
Communication Camp 2011 <http://media.ccc.de/> showing how to detect ISPs
that are delaying traffic to particular sites (video of Dan's talk
<http://media.ccc.de/browse/conferences/camp2011/cccamp11-4555-black_ops_of_tcpip_2011-en.html>).
Note that the first 2/3 of the talk is a very interesting exploration of
the security characteristics of Bitcoin, also showing how the Bitcoin
database can be used as a peristent shared store. The latter third of the
talk is about network neutrality, and tools for detecting filters that
selectively delay or limit network traffic.
Noah